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At 100mm in diameter, these giant binoculars have the largest objective lenses within the Skymaster series and if you think as each of them as windows, they have the potential to capture and let in more light than any other.
So whilst these large lenses do make for a bigger and heavier instrument, they play a very important part as the extra light has permitted Celestron to use a very powerful 25x magnification and still manage to maintain a reasonably large 4mm exit pupil. This directly translates to you being able to observe a bright image of the night sky even on the darkest of nights and the extra power enables you to reach further into space and see objects that you would not have otherwise, or observe an object is more detail than you could at a lower magnification.
A downside to having such a high magnification is that your field of view is reduced and thus these may not be an ideal choice for scanning the sky or for observing a complete constellation without having to move the view about. This is where a lower powered astronomy binocular like the Skymaster 8x56 DX has the upper hand.
At 15mm, the eye relief is perfectly acceptable for most users. However should you need to wear glasses, this may present a slight problem in achieving the full field of view.
Being so large and with such a high power, it is imperative that you attach the binocular to a solid base like a tripod. The built-in tripod adapter makes this very simple to achieve.
Award winning SkyMaster series by Celestron offers one of the best binoculars for astronomical and terrestrial viewing. Extreme power and large objective lenses offer incredible view-through with extreme detail in the most challenging light conditions. With SkyMaster binoculars, you are able to observe stars, planets, comets, galaxies and more. The smallest in the series with SkyMaster 8x56 configuration received the Space.com's 2014 Editor's award for being the best medium astronomy binocular and SkyMaster 25x100 as the best astronomy binoculars. There are also two zoom version available to be able to change magnifications without moving the position. The binoculars have Porro prism system with multi-coatings on glass surfaces (except DX models which are fully multi-coated) and are splash-proof and enclosed in rubber armoring for protection.
The SkyMaster binoculars are one of the most powerful binoculars on the market offering models with 15x, 20x and 25x magnifications combined with large objective lenses, from 56mm to 100mm. This configuration allows you to use them in poorest lighting conditions in the wildlife and for astronomy applications. Two of the models also offer variable magnifications, so you can get finer details without moving the position. They are made out of aluminum housing enclosed in rubber armouring for maximal protection against impacts and abrasions. The rubber armoring is also rugged to prevent any sudden slips. The pocket sized binoculars have a roof prism design to make them more compact and light, and bigger models have a Porro prism system to make them brighter. The binoculars are splash-proof, tightly sealed to not get damaged when using them in the damp areas.
SkyMasters are equipped with high-quality BaK-4 prisms for better light transmission and multi-coated lenses to help not only with brightness, but also to enhance the contrast and colors. This also helps to prevent the chromatic aberration, glaring and internal reflections. The smallest pocket sized models are fully-multi coated to help provide better images since they are using less bright roof prism system. All the models offer central focusing mechanism with grippy wheel that allows you to make quick adjustments with the help of right-eye diopter. Eyecups are foldable, but offer very generous eye-relief, and you can make it perfect even for eyeglass wearers.
SkyMaster binoculars comes in case for storage and protection and binocular strap. They are also equipped with objective lens covers and eyecups covers to protect the lenses, but are not included in smaller roof prism models.
Low-light, long range binoculars |
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Low-light, long range binoculars |
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Low-light, long range binoculars |
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Low-light, long range binoculars |
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Low-light, long range binoculars |
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Zoom, Low-light, long range binoculars |
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Low-light, long range binoculars |
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SkyMaster 25-125x80 |
Zoom, Low-light, long range binoculars |
Low-light, long range binoculars |
Celestron gives Limited Lifetime Warranty for SkyMaster Binoculars. The company repairs or replaces damaged products, without charge. However, it doesn’t include No Fault Policy – doesn’t cover damages due to mishandling, misuse, neglect or accidental damage. Product exteriors - armoring and lenses are fully covered for 5 years against defects, not scratches or blemishes. Accessories such as lens covers, neckstraps and cases are fully covered for 2 years. Loss of the product or accessories is not covered. Collimation and optical alignment issues must be claimed within 30 days of purchase. You can claim the warranty with receipt as a proof of purchase.
You can learn more about our own warranty policy on the following link: https://www.optics-trade.eu/en/warranty-policy.html
No matter what happens to your binoculars, we will be here to help you.
Binoculars series | Celestron Skymaster |
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Made in | China |
In production since | - |
Warranty | 2 years |
Type of prism | Porro |
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Variable magnification | No |
Magnification. | $28.55 |
Diopter adjustment | - |
Lens size diameter. | $100.00 |
Exit pupil. | $4.48 |
Field of view - FOV... | $59.23 |
Field of view (angular). | $3.36 |
Eye relief distance. | $17.05 |
Closest focusing distance. | $27.52 |
Twilight Factor | 50 |
Light transmittance | - |
Relative Brightness | 16 |
Lens coatings | Multicoated |
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Length. | $437.87 |
Width. | $288.91 |
Height. | $146.71 |
Weight. | $4,446.91 |
Working temperature range | - |
Filled with | Nitrogen |
Focusing system | Central |
Diopter setting location | Right eye-piece |
Minimal interpupillary distance. | $62.79 |
Maximal interpupillary distance. | $80.73 |
Type of Body | Open bridge |
Water proof | Yes |
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Fogproof | Yes |
Built-in Compass | No |
Built in Range finder | No |
Image stabilization (IS) | No |
Able to float | No |
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